K&N performance High-Flow Air Filters are engineered to improve engine performance by increasing airflow. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your motorcycle, ATV, or Side-By-Side vehicle. K&N air filters are backed by our famous 10-Year/Million Mile Limited Warranty, and they provide an environmentally friendly way to reduce landfill waste by avoiding disposable filters. Engineered to fit easily into your factory air box, installation can be completed in a matter of minutes! K&N develops and tests each product on the world's toughest race tracks, so we can bring the highest level of performance for your journey. Join the millions of customers who have saved money and improved performance by upgrading to K&N filtration. Fitment Information: 2016-2017 HARLEY DAVIDSON FLS Softail Slim; 2016-2017 HARLEY DAVIDSON FLSTC Heritage Softail Classic; 2016-2017 HARLEY DAVIDSON FLSTF Fat Boy; 2016-2017 HARLEY DAVIDSON FLSTFB Softail Fat Boy Lo; 2016-2017 HARLEY DAVIDSON FLSTN Softail Deluxe; 2016-2017 HARLEY DAVIDSON FXSB Breakout; 2014-2016 HARLEY DAVIDSON FLHR Road King; 2014-2016 HARLEY DAVIDSON FLHTCU Electra Glide Ultra Classic; 2015-2016 HARLEY DAVIDSON FLHTCUL Electra Glide Ultra Classic Low; 2014-2016 HARLEY DAVIDSON FLHTCUTG Tri Glide Ultra; 2015-2016 HARLEY DAVIDSON FLHTK Ultra Limited; 2015-2016 HARLEY DAVIDSON FLHTKL Ultra Limited Low; 2016 HARLEY DAVIDSON FLHX Electra Glide Special; 2014-2016 HARLEY DAVIDSON FLHX Street Glide; 2014-2016 HARLEY DAVIDSON FLHXS Street Glide Special; 2015-2016 HARLEY DAVIDSON FLRT Freewheeler; 2016 HARLEY DAVIDSON FLTRU Road Glide Ultra; 2015-2016 HARLEY DAVIDSON FLTRX Road Glide; 2015-2016 HARLEY DAVIDSON FLTRXS Road Glide Special; 2014 HARLEY DAVIDSON FLHTK Electra Glide Ultra Limited